"I'm not going out with Rob. We were close for a while, but it didn't work because I was never there," Ora explained.

"I was like a ghost. I used to get so frustrated with myself and then wonder why I was angry, so I decided it was best to keep [our relationship] friendly - especially at the moment, when there's so much going on."

Kardashian is reported to have implied that the 22-year old singer cheated on him, causing their split.

The Keeping Up with the Kardashians star later attempted to clarify his tweets, saying that he had never even mentioned Ora by name in any messages about a recent break-up - since deleted - that he posted to Twitter.

Ora also claimed in the interview that she has never been in love before, saying: "In 22 years, there's been nothing. I have had young fascinations, but never love.

"I think it's my only weakness. I'm scared of letting my guard down, and if I feel in love with someone now, he'd have to try ten times harder to break it down."